1 ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
2 ; RUN: opt -S -passes=instcombine < %s | FileCheck %s
3 ; Check that we don't crash on unreasonable constant indexes
5 define i32 @test_out_of_bounds(i32 %a, i1 %x, i1 %y) {
6 ; CHECK-LABEL: @test_out_of_bounds(
8 ; CHECK-NEXT: store i1 true, ptr poison, align 1
9 ; CHECK-NEXT: ret i32 poison
13 %B = lshr i32 %and1, -2147483648
14 %cmp = icmp eq i32 %B, 1
15 tail call void @llvm.assume(i1 %cmp)
19 define i128 @test_non64bit(i128 %a) {
20 ; CHECK-LABEL: @test_non64bit(
21 ; CHECK-NEXT: store i1 true, ptr poison, align 1
22 ; CHECK-NEXT: ret i128 poison
24 %and1 = and i128 %a, 3
25 %B = lshr i128 %and1, -1
26 %cmp = icmp eq i128 %B, 1
27 tail call void @llvm.assume(i1 %cmp)
31 declare void @llvm.assume(i1)
33 define <4 x double> @inselt_bad_index(<4 x double> %a) {
34 ; CHECK-LABEL: @inselt_bad_index(
35 ; CHECK-NEXT: ret <4 x double> poison
37 %I = insertelement <4 x double> %a, double 0.0, i64 4294967296